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Finding the Fourth Proportional to 266,904.83, 400,361.88 and 98,338.39

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Solution

The fourth proportional to 266,904.83, 400,361.88 and 98,338.39 is: 147,509.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,904.83 : 400,361.88 = 98,338.39 : x
  2. Step 2: Convert to fraction form
    266,904.83/400,361.88 = 98,338.39/x
  3. Step 3: Cross multiply
    266,904.83x = 400,361.88 × 98,338.39
  4. Step 4: Simplify right side
    266,904.83x = 39,370,942,696.57
  5. Step 5: Solve for x
    x = 39,370,942,696.57/266,904.83
  6. Step 6: Final answer
    x = 147,509.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.